CH-14 PROBABILITY

1. – The event of an event not occurring is called its complementary event.
5. – A single performance of an experiment is called a trial.
6. – An experiment whose outcome cannot be predicted with certainty is called a random experiment.
7. – Outcomes having the same chance of occurring are called equally likely outcomes.
8. – A collection of one or more outcomes is called an event.
9. – The outcomes that satisfy the given event are called favourable outcomes.
10. – An event that cannot occur is called an impossible event.
11. – An event that always occurs is called a sure event.
14. – Probability is the measure of the chance of an event occurring.
15. – A probability of 0 indicates an impossible event.
16. – A possible result of an experiment is called an outcome.

2. – The value of probability always lies between 0 and 1.
3. – The probability of an event is equal to the number of favourable outcomes divided by the total number of possible outcomes.
4. – The set of all possible outcomes of an experiment is called the sample space.
12. – A probability of 1 indicates a sure event.
13. – An experiment is an activity that produces one or more outcomes.